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(parent: f5ad69f) | patch
iwlwifi: fix permissions on debugfs files
authorReinette Chatre <reinette.chatre@intel.com>
Thu, 9 Jul 2009 17:33:38 +0000 (10:33 -0700)
committerJohn W. Linville <linville@tuxdriver.com>
Fri, 24 Jul 2009 19:05:10 +0000 (15:05 -0400)
commitfcf89d05404dafcde581d44dfa89bd8c8def27f9
treeaee13469f4b28bcb238d31b5760d9568b70999fctree | snapshot
parentf5ad69fa47e7b204d0032d569812544cd9a351fbcommit | diff
iwlwifi: fix permissions on debugfs files

debugfs files are created with 644 permissions which gives everybody
read access. This presents a security issue if a user opens the file and
holds it open at the time the driver removes the file. At this point
invalid memory will be accessed.

Fix this by only allowing root to read debugfs files.

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
drivers/net/wireless/iwlwifi/iwl-debugfs.c diff | blob | history
Full containers within linux kernel